AFind HCF and LCM of following pairs of integersby prime factorisation

1.	AFind HCF and LCM of following pairs of integersby prime factorisation method and verify that LCMx HCF = Product of the two numbers:() 26, 91(ii) 21, 315 (ii) 77, 979
Answer» 26 = 21391 = 713Hence H.C.F = 13L.C.M = 1372=1314=182H.C.F L.C.M = 13182 = 2366Product of the two numbers = 2691 = 2366 Hence H.C.F * L.C.M = product of the two numbers..

AFind HCF and LCM of following pairs of integersby prime factorisation method and verify that LCMx HCF = Product of the two numbers:() 26, 91(ii) 21, 315 (ii) 77, 979

Answer»

26 = 2*1391 = 7*13Hence H.C.F = 13L.C.M = 13*7*2=13*14=182H.C.F * L.C.M = 13*182 = 2366Product of the two numbers = 26*91 = 2366

Hence H.C.F * L.C.M = product of the two numbers..